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  • Male  (8)
  • Nature Publishing Group (NPG)  (8)
  • American Geophysical Union (AGU)
  • American Institute of Physics
  • American Institute of Physics (AIP)
  • National Academy of Sciences
  • 2015-2019
  • 2010-2014  (8)
  • 1960-1964
  • 2011  (8)
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  • 2015-2019
  • 2010-2014  (8)
  • 1960-1964
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  • 1
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    Interferon-gamma links ultraviolet radiation to melanomagenesis in mice (2011)
    Nature Publishing Group (NPG)
    Details
    Publikationsdatum: 2011-01-21
    Beschreibung: Cutaneous malignant melanoma is a highly aggressive and frequently chemoresistant cancer, the incidence of which continues to rise. Epidemiological studies show that the major aetiological melanoma risk factor is ultraviolet (UV) solar radiation, with the highest risk associated with intermittent burning doses, especially during childhood. We have experimentally validated these epidemiological findings using the hepatocyte growth factor/scatter factor transgenic mouse model, which develops lesions in stages highly reminiscent of human melanoma with respect to biological, genetic and aetiological criteria, but only when irradiated as neonatal pups with UVB, not UVA. However, the mechanisms underlying UVB-initiated, neonatal-specific melanomagenesis remain largely unknown. Here we introduce a mouse model permitting fluorescence-aided melanocyte imaging and isolation following in vivo UV irradiation. We use expression profiling to show that activated neonatal skin melanocytes isolated following a melanomagenic UVB dose bear a distinct, persistent interferon response signature, including genes associated with immunoevasion. UVB-induced melanocyte activation, characterized by aberrant growth and migration, was abolished by antibody-mediated systemic blockade of interferon-gamma (IFN-gamma), but not type-I interferons. IFN-gamma was produced by macrophages recruited to neonatal skin by UVB-induced ligands to the chemokine receptor Ccr2. Admixed recruited skin macrophages enhanced transplanted melanoma growth by inhibiting apoptosis; notably, IFN-gamma blockade abolished macrophage-enhanced melanoma growth and survival. IFN-gamma-producing macrophages were also identified in 70% of human melanomas examined. Our data reveal an unanticipated role for IFN-gamma in promoting melanocytic cell survival/immunoevasion, identifying a novel candidate therapeutic target for a subset of melanoma patients.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3140101/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3140101/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Zaidi, M Raza -- Davis, Sean -- Noonan, Frances P -- Graff-Cherry, Cari -- Hawley, Teresa S -- Walker, Robert L -- Feigenbaum, Lionel -- Fuchs, Elaine -- Lyakh, Lyudmila -- Young, Howard A -- Hornyak, Thomas J -- Arnheiter, Heinz -- Trinchieri, Giorgio -- Meltzer, Paul S -- De Fabo, Edward C -- Merlino, Glenn -- CA53765/CA/NCI NIH HHS/ -- CA92258/CA/NCI NIH HHS/ -- R01 CA053765-10S1/CA/NCI NIH HHS/ -- R01 CA092258-05/CA/NCI NIH HHS/ -- Intramural NIH HHS/ -- England -- Nature. 2011 Jan 27;469(7331):548-53. doi: 10.1038/nature09666. Epub 2011 Jan 19.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Laboratory of Cancer Biology and Genetics, National Cancer Institute, Bethesda, Maryland 20892, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21248750" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Disease Models, Animal ; Female ; Gene Expression Profiling ; Gene Expression Regulation, Developmental/radiation effects ; Humans ; Interferon-gamma/*metabolism ; Macrophages/metabolism/radiation effects ; Male ; Melanocytes/*metabolism/radiation effects ; Melanoma/*physiopathology ; Mice ; *Ultraviolet Rays
    Print ISSN: 0028-0836
    Digitale ISSN: 1476-4687
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von Nature Publishing Group (NPG)
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  • 2
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    The genomic complexity of primary human prostate cancer (2011)
    Nature Publishing Group (NPG)
    Details
    Publikationsdatum: 2011-02-11
    Beschreibung: Prostate cancer is the second most common cause of male cancer deaths in the United States. However, the full range of prostate cancer genomic alterations is incompletely characterized. Here we present the complete sequence of seven primary human prostate cancers and their paired normal counterparts. Several tumours contained complex chains of balanced (that is, 'copy-neutral') rearrangements that occurred within or adjacent to known cancer genes. Rearrangement breakpoints were enriched near open chromatin, androgen receptor and ERG DNA binding sites in the setting of the ETS gene fusion TMPRSS2-ERG, but inversely correlated with these regions in tumours lacking ETS fusions. This observation suggests a link between chromatin or transcriptional regulation and the genesis of genomic aberrations. Three tumours contained rearrangements that disrupted CADM2, and four harboured events disrupting either PTEN (unbalanced events), a prostate tumour suppressor, or MAGI2 (balanced events), a PTEN interacting protein not previously implicated in prostate tumorigenesis. Thus, genomic rearrangements may arise from transcriptional or chromatin aberrancies and engage prostate tumorigenic mechanisms.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3075885/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3075885/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Berger, Michael F -- Lawrence, Michael S -- Demichelis, Francesca -- Drier, Yotam -- Cibulskis, Kristian -- Sivachenko, Andrey Y -- Sboner, Andrea -- Esgueva, Raquel -- Pflueger, Dorothee -- Sougnez, Carrie -- Onofrio, Robert -- Carter, Scott L -- Park, Kyung -- Habegger, Lukas -- Ambrogio, Lauren -- Fennell, Timothy -- Parkin, Melissa -- Saksena, Gordon -- Voet, Douglas -- Ramos, Alex H -- Pugh, Trevor J -- Wilkinson, Jane -- Fisher, Sheila -- Winckler, Wendy -- Mahan, Scott -- Ardlie, Kristin -- Baldwin, Jennifer -- Simons, Jonathan W -- Kitabayashi, Naoki -- MacDonald, Theresa Y -- Kantoff, Philip W -- Chin, Lynda -- Gabriel, Stacey B -- Gerstein, Mark B -- Golub, Todd R -- Meyerson, Matthew -- Tewari, Ashutosh -- Lander, Eric S -- Getz, Gad -- Rubin, Mark A -- Garraway, Levi A -- 2 P50 CA090381-11/CA/NCI NIH HHS/ -- DP2 OD002750/OD/NIH HHS/ -- DP2 OD002750-01/OD/NIH HHS/ -- R33 CA126674/CA/NCI NIH HHS/ -- R33 CA126674-03/CA/NCI NIH HHS/ -- Howard Hughes Medical Institute/ -- England -- Nature. 2011 Feb 10;470(7333):214-20. doi: 10.1038/nature09744.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉The Broad Institute of Harvard and MIT, Cambridge, Massachusetts 02142, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21307934" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Carrier Proteins/genetics ; Case-Control Studies ; Cell Adhesion Molecules/genetics ; Chromatin/genetics/metabolism ; Chromosome Aberrations ; Chromosome Breakpoints ; Epigenesis, Genetic/genetics ; Gene Expression Regulation, Neoplastic ; Genome, Human/*genetics ; Humans ; Male ; PTEN Phosphohydrolase/genetics/metabolism ; Prostatic Neoplasms/*genetics ; Recombination, Genetic/genetics ; Signal Transduction/genetics ; Transcription, Genetic
    Print ISSN: 0028-0836
    Digitale ISSN: 1476-4687
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von Nature Publishing Group (NPG)
    Standort Signatur Erwartet Verfügbarkeit
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  • 3
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    Genome sequencing reveals insights into physiology and longevity of the naked mole rat (2011)
    Nature Publishing Group (NPG)
    Details
    Publikationsdatum: 2011-10-14
    Beschreibung: The naked mole rat (Heterocephalus glaber) is a strictly subterranean, extraordinarily long-lived eusocial mammal. Although it is the size of a mouse, its maximum lifespan exceeds 30 years, making this animal the longest-living rodent. Naked mole rats show negligible senescence, no age-related increase in mortality, and high fecundity until death. In addition to delayed ageing, they are resistant to both spontaneous cancer and experimentally induced tumorigenesis. Naked mole rats pose a challenge to the theories that link ageing, cancer and redox homeostasis. Although characterized by significant oxidative stress, the naked mole rat proteome does not show age-related susceptibility to oxidative damage or increased ubiquitination. Naked mole rats naturally reside in large colonies with a single breeding female, the 'queen', who suppresses the sexual maturity of her subordinates. They also live in full darkness, at low oxygen and high carbon dioxide concentrations, and are unable to sustain thermogenesis nor feel certain types of pain. Here we report the sequencing and analysis of the naked mole rat genome, which reveals unique genome features and molecular adaptations consistent with cancer resistance, poikilothermy, hairlessness and insensitivity to low oxygen, and altered visual function, circadian rythms and taste sensing. This information provides insights into the naked mole rat's exceptional longevity and ability to live in hostile conditions, in the dark and at low oxygen. The extreme traits of the naked mole rat, together with the reported genome and transcriptome information, offer opportunities for understanding ageing and advancing other areas of biological and biomedical research.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3319411/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3319411/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Kim, Eun Bae -- Fang, Xiaodong -- Fushan, Alexey A -- Huang, Zhiyong -- Lobanov, Alexei V -- Han, Lijuan -- Marino, Stefano M -- Sun, Xiaoqing -- Turanov, Anton A -- Yang, Pengcheng -- Yim, Sun Hee -- Zhao, Xiang -- Kasaikina, Marina V -- Stoletzki, Nina -- Peng, Chunfang -- Polak, Paz -- Xiong, Zhiqiang -- Kiezun, Adam -- Zhu, Yabing -- Chen, Yuanxin -- Kryukov, Gregory V -- Zhang, Qiang -- Peshkin, Leonid -- Yang, Lan -- Bronson, Roderick T -- Buffenstein, Rochelle -- Wang, Bo -- Han, Changlei -- Li, Qiye -- Chen, Li -- Zhao, Wei -- Sunyaev, Shamil R -- Park, Thomas J -- Zhang, Guojie -- Wang, Jun -- Gladyshev, Vadim N -- AG021518/AG/NIA NIH HHS/ -- AG038004/AG/NIA NIH HHS/ -- CA080946/CA/NCI NIH HHS/ -- R01 AG021518/AG/NIA NIH HHS/ -- R01 AG021518-10/AG/NIA NIH HHS/ -- R01 AG038004/AG/NIA NIH HHS/ -- R01 AG038004-02/AG/NIA NIH HHS/ -- R01 CA080946/CA/NCI NIH HHS/ -- R01 CA080946-11/CA/NCI NIH HHS/ -- England -- Nature. 2011 Oct 12;479(7372):223-7. doi: 10.1038/nature10533.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Bioinspired Science, Ewha Womans University, Seoul, 120-750, Korea.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21993625" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Adaptation, Physiological/*genetics ; Aging/genetics ; Amino Acid Sequence ; Animals ; Body Temperature Regulation/genetics ; Carbon Dioxide/analysis/metabolism ; Circadian Rhythm/genetics ; Darkness ; Genes/genetics ; Genome/*genetics ; Genomic Instability/genetics ; Genomics ; Humans ; Ion Channels/genetics ; Longevity/*genetics/physiology ; Male ; Mitochondrial Proteins/genetics ; Mole Rats/*genetics/*physiology ; Molecular Sequence Data ; Mutagenesis/genetics ; Oxygen/analysis/metabolism ; Taste/genetics ; Transcriptome/genetics ; Visual Perception/genetics
    Print ISSN: 0028-0836
    Digitale ISSN: 1476-4687
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von Nature Publishing Group (NPG)
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  • 4
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    Transgenerational epigenetic inheritance of longevity in Caenorhabditis elegans (2011)
    Nature Publishing Group (NPG)
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    Publikationsdatum: 2011-10-21
    Beschreibung: Chromatin modifiers regulate lifespan in several organisms, raising the question of whether changes in chromatin states in the parental generation could be incompletely reprogrammed in the next generation and thereby affect the lifespan of descendants. The histone H3 lysine 4 trimethylation (H3K4me3) complex, composed of ASH-2, WDR-5 and the histone methyltransferase SET-2, regulates Caenorhabditis elegans lifespan. Here we show that deficiencies in the H3K4me3 chromatin modifiers ASH-2, WDR-5 or SET-2 in the parental generation extend the lifespan of descendants up until the third generation. The transgenerational inheritance of lifespan extension by members of the ASH-2 complex is dependent on the H3K4me3 demethylase RBR-2, and requires the presence of a functioning germline in the descendants. Transgenerational inheritance of lifespan is specific for the H3K4me3 methylation complex and is associated with epigenetic changes in gene expression. Thus, manipulation of specific chromatin modifiers only in parents can induce an epigenetic memory of longevity in descendants.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3368121/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3368121/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Greer, Eric L -- Maures, Travis J -- Ucar, Duygu -- Hauswirth, Anna G -- Mancini, Elena -- Lim, Jana P -- Benayoun, Berenice A -- Shi, Yang -- Brunet, Anne -- ARRA-AG31198/AG/NIA NIH HHS/ -- F32-AG037254/AG/NIA NIH HHS/ -- R01 AG031198/AG/NIA NIH HHS/ -- R01-AG31198/AG/NIA NIH HHS/ -- R01-GM058012/GM/NIGMS NIH HHS/ -- T32 CA009302/CA/NCI NIH HHS/ -- T32-CA009361/CA/NCI NIH HHS/ -- T32-MH020016/MH/NIMH NIH HHS/ -- England -- Nature. 2011 Oct 19;479(7373):365-71. doi: 10.1038/nature10572.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Genetics, Stanford University, 300 Pasteur Drive, Stanford, California 94305, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/22012258" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Caenorhabditis elegans/*genetics/*physiology ; Caenorhabditis elegans Proteins/genetics/metabolism ; Chromatin/metabolism ; Epigenesis, Genetic/*genetics ; Female ; Gene Expression Regulation ; Gene Knockdown Techniques ; Histone Demethylases/genetics/metabolism ; Histone-Lysine N-Methyltransferase/deficiency/genetics/metabolism ; Histones ; *Inheritance Patterns ; Longevity/*genetics/physiology ; Male ; Methylation ; Mutation/genetics ; Nuclear Proteins/genetics/metabolism ; Pedigree ; Retinoblastoma-Binding Protein 2/genetics/metabolism
    Print ISSN: 0028-0836
    Digitale ISSN: 1476-4687
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von Nature Publishing Group (NPG)
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  • 5
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    Shank3 mutant mice display autistic-like behaviours and striatal dysfunction (2011)
    Nature Publishing Group (NPG)
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    Publikationsdatum: 2011-03-23
    Beschreibung: Autism spectrum disorders (ASDs) comprise a range of disorders that share a core of neurobehavioural deficits characterized by widespread abnormalities in social interactions, deficits in communication as well as restricted interests and repetitive behaviours. The neurological basis and circuitry mechanisms underlying these abnormal behaviours are poorly understood. SHANK3 is a postsynaptic protein, whose disruption at the genetic level is thought to be responsible for the development of 22q13 deletion syndrome (Phelan-McDermid syndrome) and other non-syndromic ASDs. Here we show that mice with Shank3 gene deletions exhibit self-injurious repetitive grooming and deficits in social interaction. Cellular, electrophysiological and biochemical analyses uncovered defects at striatal synapses and cortico-striatal circuits in Shank3 mutant mice. Our findings demonstrate a critical role for SHANK3 in the normal development of neuronal connectivity and establish causality between a disruption in the Shank3 gene and the genesis of autistic-like behaviours in mice.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3090611/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3090611/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Peca, Joao -- Feliciano, Catia -- Ting, Jonathan T -- Wang, Wenting -- Wells, Michael F -- Venkatraman, Talaignair N -- Lascola, Christopher D -- Fu, Zhanyan -- Feng, Guoping -- F32MH084460/MH/NIMH NIH HHS/ -- R01 MH081201/MH/NIMH NIH HHS/ -- R01 MH081201-05/MH/NIMH NIH HHS/ -- R01MH081201/MH/NIMH NIH HHS/ -- R03MH085224/MH/NIMH NIH HHS/ -- England -- Nature. 2011 Apr 28;472(7344):437-42. doi: 10.1038/nature09965. Epub 2011 Mar 20.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Neurobiology, Duke University Medical Center, Durham, North Carolina 27710, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21423165" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Autistic Disorder/*genetics/*physiopathology ; Carrier Proteins/*genetics/*metabolism ; Compulsive Behavior/genetics ; Female ; Gene Deletion ; Grooming ; Male ; Mice ; Mutant Proteins/genetics/metabolism ; Neostriatum/pathology/*physiopathology ; Nerve Tissue Proteins ; Neural Pathways ; RNA, Messenger/genetics/metabolism ; Self-Injurious Behavior/genetics/physiopathology ; Social Behavior ; Synapses/metabolism/pathology
    Print ISSN: 0028-0836
    Digitale ISSN: 1476-4687
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von Nature Publishing Group (NPG)
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  • 6
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    An integrated semiconductor device enabling non-optical genome sequencing (2011)
    Nature Publishing Group (NPG)
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    Publikationsdatum: 2011-07-22
    Beschreibung: The seminal importance of DNA sequencing to the life sciences, biotechnology and medicine has driven the search for more scalable and lower-cost solutions. Here we describe a DNA sequencing technology in which scalable, low-cost semiconductor manufacturing techniques are used to make an integrated circuit able to directly perform non-optical DNA sequencing of genomes. Sequence data are obtained by directly sensing the ions produced by template-directed DNA polymerase synthesis using all-natural nucleotides on this massively parallel semiconductor-sensing device or ion chip. The ion chip contains ion-sensitive, field-effect transistor-based sensors in perfect register with 1.2 million wells, which provide confinement and allow parallel, simultaneous detection of independent sequencing reactions. Use of the most widely used technology for constructing integrated circuits, the complementary metal-oxide semiconductor (CMOS) process, allows for low-cost, large-scale production and scaling of the device to higher densities and larger array sizes. We show the performance of the system by sequencing three bacterial genomes, its robustness and scalability by producing ion chips with up to 10 times as many sensors and sequencing a human genome.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Rothberg, Jonathan M -- Hinz, Wolfgang -- Rearick, Todd M -- Schultz, Jonathan -- Mileski, William -- Davey, Mel -- Leamon, John H -- Johnson, Kim -- Milgrew, Mark J -- Edwards, Matthew -- Hoon, Jeremy -- Simons, Jan F -- Marran, David -- Myers, Jason W -- Davidson, John F -- Branting, Annika -- Nobile, John R -- Puc, Bernard P -- Light, David -- Clark, Travis A -- Huber, Martin -- Branciforte, Jeffrey T -- Stoner, Isaac B -- Cawley, Simon E -- Lyons, Michael -- Fu, Yutao -- Homer, Nils -- Sedova, Marina -- Miao, Xin -- Reed, Brian -- Sabina, Jeffrey -- Feierstein, Erika -- Schorn, Michelle -- Alanjary, Mohammad -- Dimalanta, Eileen -- Dressman, Devin -- Kasinskas, Rachel -- Sokolsky, Tanya -- Fidanza, Jacqueline A -- Namsaraev, Eugeni -- McKernan, Kevin J -- Williams, Alan -- Roth, G Thomas -- Bustillo, James -- R01 HG005094/HG/NHGRI NIH HHS/ -- England -- Nature. 2011 Jul 20;475(7356):348-52. doi: 10.1038/nature10242.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Ion Torrent by Life Technologies, Suite 100, 246 Goose Lane, Guilford, Connecticut 06437, USA. Jonathan.Rothberg@Lifetech.com〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21776081" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Escherichia coli/genetics ; Genome, Bacterial/*genetics ; Genome, Human/*genetics ; Genomics/*instrumentation/*methods ; Humans ; Light ; Male ; Rhodopseudomonas/genetics ; *Semiconductors ; Sequence Analysis, DNA/*instrumentation/*methods ; Vibrio/genetics
    Print ISSN: 0028-0836
    Digitale ISSN: 1476-4687
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von Nature Publishing Group (NPG)
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  • 7
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    Complement factor H binds malondialdehyde epitopes and protects from oxidative stress (2011)
    Nature Publishing Group (NPG)
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    Publikationsdatum: 2011-10-08
    Beschreibung: Oxidative stress and enhanced lipid peroxidation are linked to many chronic inflammatory diseases, including age-related macular degeneration (AMD). AMD is the leading cause of blindness in Western societies, but its aetiology remains largely unknown. Malondialdehyde (MDA) is a common lipid peroxidation product that accumulates in many pathophysiological processes, including AMD. Here we identify complement factor H (CFH) as a major MDA-binding protein that can block both the uptake of MDA-modified proteins by macrophages and MDA-induced proinflammatory effects in vivo in mice. The CFH polymorphism H402, which is strongly associated with AMD, markedly reduces the ability of CFH to bind MDA, indicating a causal link to disease aetiology. Our findings provide important mechanistic insights into innate immune responses to oxidative stress, which may be exploited in the prevention of and therapy for AMD and other chronic inflammatory diseases.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Weismann, David -- Hartvigsen, Karsten -- Lauer, Nadine -- Bennett, Keiryn L -- Scholl, Hendrik P N -- Charbel Issa, Peter -- Cano, Marisol -- Brandstatter, Hubert -- Tsimikas, Sotirios -- Skerka, Christine -- Superti-Furga, Giulio -- Handa, James T -- Zipfel, Peter F -- Witztum, Joseph L -- Binder, Christoph J -- EY019044/EY/NEI NIH HHS/ -- EY14005/EY/NEI NIH HHS/ -- F 3015/Austrian Science Fund FWF/Austria -- HL088093/HL/NHLBI NIH HHS/ -- P01 HL088093/HL/NHLBI NIH HHS/ -- R01 HL086599/HL/NHLBI NIH HHS/ -- England -- Nature. 2011 Oct 5;478(7367):76-81. doi: 10.1038/nature10449.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Center for Molecular Medicine of the Austrian Academy of Sciences, 1090 Vienna, Austria.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21979047" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Animals ; Apoptosis ; Binding Sites/genetics ; Complement Factor H/genetics/immunology/*metabolism ; Complement Inactivator Proteins/genetics/immunology/metabolism ; Complement System Proteins/immunology/metabolism ; Enzyme-Linked Immunosorbent Assay ; Epitopes/chemistry/*metabolism ; Female ; Humans ; Inflammation/immunology/metabolism/pathology ; Lipid Peroxidation ; Macrophages, Peritoneal/metabolism ; Macular Degeneration/metabolism/pathology ; Male ; Malondialdehyde/antagonists & inhibitors/chemistry/immunology/*metabolism ; Mice ; Mice, Inbred C57BL ; Mutation/genetics ; Necrosis ; *Oxidative Stress ; Protein Binding/genetics ; Protein Structure, Tertiary ; Retina/metabolism
    Print ISSN: 0028-0836
    Digitale ISSN: 1476-4687
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von Nature Publishing Group (NPG)
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  • 8
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    X chromosome dosage compensation via enhanced transcriptional elongation in Drosophila (2011)
    Nature Publishing Group (NPG)
    Details
    Publikationsdatum: 2011-03-04
    Beschreibung: The evolution of sex chromosomes has resulted in numerous species in which females inherit two X chromosomes but males have a single X, thus requiring dosage compensation. MSL (Male-specific lethal) complex increases transcription on the single X chromosome of Drosophila males to equalize expression of X-linked genes between the sexes. The biochemical mechanisms used for dosage compensation must function over a wide dynamic range of transcription levels and differential expression patterns. It has been proposed that the MSL complex regulates transcriptional elongation to control dosage compensation, a model subsequently supported by mapping of the MSL complex and MSL-dependent histone 4 lysine 16 acetylation to the bodies of X-linked genes in males, with a bias towards 3' ends. However, experimental analysis of MSL function at the mechanistic level has been challenging owing to the small magnitude of the chromosome-wide effect and the lack of an in vitro system for biochemical analysis. Here we use global run-on sequencing (GRO-seq) to examine the specific effect of the MSL complex on RNA Polymerase II (RNAP II) on a genome-wide level. Results indicate that the MSL complex enhances transcription by facilitating the progression of RNAP II across the bodies of active X-linked genes. Improving transcriptional output downstream of typical gene-specific controls may explain how dosage compensation can be imposed on the diverse set of genes along an entire chromosome.〈br /〉〈br /〉〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3076316/" target="_blank"〉〈img src="https://static.pubmed.gov/portal/portal3rc.fcgi/4089621/img/3977009" border="0"〉〈/a〉   〈a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3076316/" target="_blank"〉This paper as free author manuscript - peer-reviewed and accepted for publication〈/a〉〈br /〉〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Larschan, Erica -- Bishop, Eric P -- Kharchenko, Peter V -- Core, Leighton J -- Lis, John T -- Park, Peter J -- Kuroda, Mitzi I -- GM082798/GM/NIGMS NIH HHS/ -- GM45744/GM/NIGMS NIH HHS/ -- HG4845/HG/NHGRI NIH HHS/ -- R01 HG004845/HG/NHGRI NIH HHS/ -- R01 HG004845-01/HG/NHGRI NIH HHS/ -- R01 HG004845-02/HG/NHGRI NIH HHS/ -- R37 GM045744/GM/NIGMS NIH HHS/ -- England -- Nature. 2011 Mar 3;471(7336):115-8. doi: 10.1038/nature09757.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Division of Genetics, Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts 02115, USA.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21368835" target="_blank"〉PubMed〈/a〉
    Schlagwort(e): Acetylation ; Animals ; Cell Line ; Chromosomes, Insect/*genetics/metabolism ; DNA-Binding Proteins/genetics/metabolism ; Dosage Compensation, Genetic/*genetics ; Drosophila Proteins/genetics/metabolism ; Drosophila melanogaster/enzymology/*genetics ; Genes, Insect/genetics ; Genes, X-Linked/genetics ; Histones/chemistry/metabolism ; Male ; Nuclear Proteins/genetics/metabolism ; RNA Polymerase II/metabolism ; Sequence Analysis, DNA ; Transcription Factors/genetics/metabolism ; *Transcription, Genetic/genetics ; X Chromosome/*genetics/metabolism
    Print ISSN: 0028-0836
    Digitale ISSN: 1476-4687
    Thema: Biologie , Chemie und Pharmazie , Medizin , Allgemeine Naturwissenschaft , Physik
    Publiziert von Nature Publishing Group (NPG)
    Standort Signatur Erwartet Verfügbarkeit
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